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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "device/usb/usb_device.h"
#include "base/guid.h"
#include "device/usb/usb_device_handle.h"
#include "device/usb/webusb_descriptors.h"
namespace device {
UsbDevice::Observer::~Observer() {}
void UsbDevice::Observer::OnDeviceRemoved(scoped_refptr<UsbDevice> device) {}
UsbDevice::UsbDevice() : guid_(base::GenerateGUID()) {}
UsbDevice::UsbDevice(const UsbDeviceDescriptor& descriptor,
const base::string16& manufacturer_string,
const base::string16& product_string,
const base::string16& serial_number)
: descriptor_(descriptor),
manufacturer_string_(manufacturer_string),
product_string_(product_string),
serial_number_(serial_number),
guid_(base::GenerateGUID()) {}
UsbDevice::UsbDevice(uint16_t usb_version,
uint8_t device_class,
uint8_t device_subclass,
uint8_t device_protocol,
uint16_t vendor_id,
uint16_t product_id,
uint16_t device_version,
const base::string16& manufacturer_string,
const base::string16& product_string,
const base::string16& serial_number)
: manufacturer_string_(manufacturer_string),
product_string_(product_string),
serial_number_(serial_number),
guid_(base::GenerateGUID()) {
descriptor_.usb_version = usb_version;
descriptor_.device_class = device_class;
descriptor_.device_subclass = device_subclass;
descriptor_.device_protocol = device_protocol;
descriptor_.vendor_id = vendor_id;
descriptor_.product_id = product_id;
descriptor_.device_version = device_version;
}
UsbDevice::~UsbDevice() {}
void UsbDevice::CheckUsbAccess(const ResultCallback& callback) {
// By default assume that access to the device is allowed. This is implemented
// on Chrome OS by checking with permission_broker.
callback.Run(true);
}
void UsbDevice::RequestPermission(const ResultCallback& callback) {
// By default assume that access to the device is allowed. This is implemented
// on Android by calling android.hardware.usb.UsbManger.requestPermission.
callback.Run(true);
}
bool UsbDevice::permission_granted() const {
return true;
}
void UsbDevice::AddObserver(Observer* observer) {
observer_list_.AddObserver(observer);
}
void UsbDevice::RemoveObserver(Observer* observer) {
observer_list_.RemoveObserver(observer);
}
void UsbDevice::ActiveConfigurationChanged(int configuration_value) {
for (const auto& config : configurations()) {
if (config.configuration_value == configuration_value) {
active_configuration_ = &config;
return;
}
}
}
void UsbDevice::NotifyDeviceRemoved() {
for (auto& observer : observer_list_)
observer.OnDeviceRemoved(this);
}
void UsbDevice::OnDisconnect() {
// Swap out the handle list as HandleClosed() will try to modify it.
std::list<UsbDeviceHandle*> handles;
handles.swap(handles_);
for (auto* handle : handles_)
handle->Close();
}
void UsbDevice::HandleClosed(UsbDeviceHandle* handle) {
handles_.remove(handle);
}
} // namespace device
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